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)(19,27)(20,30)(21,32)(22,23)(24,29)(25,31)(26,28) involution — undirected(2,5)(3,7)(11,15)(14,16)(17,19)(18,24)(20,28)(21,31)(22,27)(23,29)(25,26)(30,32) involution — undirected(1,2)(3,6)(4,5)(7,8)(9,10)(11,14)(12,13)(15,16)(17,18,23,22)(19,24,29,27)(20,30,31,25)(21,26,28,32)(2,5)(6,8)(17,20,23,31)(18,25,22,30)(19,28,29,21)(24,26,27,32)(1,2)(3,6)(4,5)(7,8)(9,11)(10,14)(12,15)(13,16)(17,21,23,28)(18,26,22,32)(19,20,29,31)(24,30,27,25)(1,3,4,7)(2,6,5,8)(9,10)(11,14)(12,13)(15,16)(17,22,23,18)(19,24,29,27)(20,30,31,25)(21,32,28,26)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.