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)(11,13)(12,14)(15,16)(18,21)(19,23)(25,26)(27,28)(29,31)(30,32)(9,10,12,14)(11,13,15,16)(18,21)(22,24)(25,27,29,32)(26,30,31,28)(11,15)(13,16)(17,18)(19,22)(20,21)(23,24)(25,28,29,30)(26,27,31,32)(1,2)(3,5)(4,6)(7,8)(9,10)(11,13)(12,14)(15,16)(17,18)(19,22)(20,21)(23,24)(25,26)(27,28)(29,31)(30,32) involution — undirected(1,3,4,7)(2,5,6,8)(9,11,12,15)(10,13,14,16)(17,19,20,23)(18,22,21,24)(25,28)(26,27)(29,30)(31,32)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.