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