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