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