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