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