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