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