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