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