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)(19,23)(20,30)(21,24)(22,25)(26,27)(28,31)(29,32)(1,3,5,4)(2,6,7,8)(9,10)(11,14)(12,13)(15,16)(17,19,22,28)(18,23,25,31)(20,26,24,32)(21,29,30,27)(1,4,5,3)(2,6,7,8)(10,13)(14,16)(17,20,30,18,22,24,21,25)(19,26,27,23,28,32,29,31)(9,11)(10,14)(12,15)(13,16)(17,21,22,30)(18,24,25,20)(19,27,28,29)(23,26,31,32)(11,15)(14,16)(19,28)(23,31)(26,32)(27,29) 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.