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