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