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