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