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