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