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