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