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