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