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