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