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