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