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