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