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