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