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