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