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