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