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