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