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