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