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