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