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