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