One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,4)(3,9,10,16)(5,13,15,8)(7,14,12,11)(17,18)(19,22)(20,29)(21,23)(24,26)(25,27)(28,30)(31,32)(1,3,6,10)(2,7,4,12)(5,14,15,11)(8,16,13,9)(3,10)(7,12)(9,16)(11,14)(18,22)(19,26)(20,27)(23,30)(24,25)(28,32)(29,31) involution — undirected(1,4,6,2)(3,9,10,16)(5,8,15,13)(7,14,12,11)(18,23)(22,30)(24,31)(25,29)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.