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