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