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