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