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