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