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