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