One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,4)(3,8,5,7)(9,10,12,14)(11,13,15,16)(17,18)(19,25)(20,28)(21,22)(23,26)(24,29)(27,30)(31,32)(1,3,6,5)(2,7,4,8)(9,10)(11,13)(12,14)(15,16)(17,18)(19,23)(20,24)(21,22)(25,26)(27,30)(28,29)(31,32)(2,4)(7,8)(18,22)(19,26)(24,28)(27,32) involution — undirected(1,4,6,2)(3,8,5,7)(9,11,12,15)(10,13,14,16)(17,18)(19,23)(20,24)(21,22)(25,26)(27,30)(28,29)(31,32)(1,5,6,3)(2,8,4,7)(17,19,21,26)(18,23,22,25)(20,27,29,32)(24,30,28,31)(17,20)(18,24)(19,27)(21,29)(22,28)(23,30)(25,31)(26,32) involution — undirectedA 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.