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