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