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