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