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