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