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