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