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