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