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