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