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