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