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