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