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