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