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