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