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