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