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