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