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