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