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