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)(11,16)(12,13)(14,15)(18,21)(19,23)(27,31)(30,32)(2,4)(6,7)(9,11)(10,13)(12,14)(15,16)(19,23)(22,24)(25,26,29,28)(27,30,31,32)(3,8)(6,7)(10,15)(11,12)(17,18)(19,22)(20,21)(23,24)(25,26,29,28)(27,30,31,32)(1,3,5,8)(2,6,4,7)(9,12,14,11)(10,16,15,13)(17,19,20,23)(18,22,21,24)(25,27)(26,30)(28,32)(29,31)(1,4,5,2)(3,7,8,6)(9,13,14,16)(10,11,15,12)(17,18)(19,22)(20,21)(23,24)(25,28,29,26)(27,32,31,30)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.