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