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