The standard grips this chord is usually shown with.
C#mMaj11 is C#, E, G#, B#, D# and F#, a minor major eleventh. The shape this page opens on is written x42542, lowest string first.

Also written C#mM11 or C#m(maj11). The same chord either way; which spelling you meet depends on who wrote the chart.
There are 6 common shapes for C#mMaj11 on the guitar, and 47 derived voicings in 4 families.
The common shapes, written lowest string first: x42542, x44554, x44664, 9-9-10-9-9-11, x-x-11-11-13-12, x-11-11-11-13-12.
Shell. Root, third and seventh: the guide tones fix the quality, so the fifth is dropped. That is what leaves a string free, so pick a tension to put on top. C#mMaj11 has x4x552, 9-x-10-9-7-x, 9-7-10-11-x-x, x4257x, x-x-11-9-13-14.
Drop 2. A close-position chord with the second voice from the top lowered an octave. Sits on four adjacent strings. C#mMaj11 has x4455x, 9-9-10-9-x-x, x-x-11-11-13-12, 2425xx, xx2522, xx4658, 8746xx, x-7-10-6-7-x.
Drop 3. The third voice from the top lowered an octave. The dropped voice becomes the bass, which is why a string is skipped. C#mMaj11 has 2x252x, x4x552, 8x465x, x7x678, 9-x-10-9-7-x, x-9-x-9-13-9, 12-x-11-11-13-x, x-15-x-11-14-12.
Rootless. The root left to the bass player. Frees a finger for a tension. C#mMaj11 has xx2112, x6455x, xx4554, x7657x, x-9-10-9-9-x, x-x-13-11-13-12, x-x-14-13-13-14, x3x152.
Tensions. A shell of C#mMaj11, root, third and seventh, leaves a string free, and the tones that belong over it are the 13 (A#).
The common shapes and the derived voicings come from different places, and both are explained in where the chords and the theory come from.
Shows each chord the way this style would voice it, and marks which of its alternatives belong to the idiom.