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