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