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