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