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