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