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