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