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