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