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