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