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