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