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