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