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