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