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