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