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