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)(14,15)(18,23)(19,27)(21,22)(24,31)(28,32)(29,30)(1,3,5,8)(2,6,4,7)(9,10,12,13)(11,15,16,14)(17,18,20,23)(19,28,29,24)(21,25,22,26)(27,31,30,32)(1,2,5,4)(3,6,8,7)(9,11,12,16)(10,14,13,15)(17,19,20,29)(18,24,23,28)(21,30,22,27)(25,31,26,32)(1,4,5,2)(3,6,8,7)(10,13)(14,15)(17,19,20,29)(18,24,23,28)(21,27,22,30)(25,32,26,31)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.