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