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