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