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