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