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