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