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