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