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