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