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