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