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