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