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