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