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