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