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