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