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)(11,13)(12,14)(15,16)(2,5)(6,8)(9,11,12,15)(10,13,14,16)(18,22)(19,26)(20,29)(23,25)(24,32)(27,28)(10,14)(13,16)(17,18,21,25)(19,24,28,32)(20,23,29,22)(26,31,27,30)(1,3,4,7)(2,6,5,8)(18,23)(19,27)(20,29)(22,25)(24,32)(26,28)(17,19,21,28)(18,24,25,32)(20,26,29,27)(22,30,23,31)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.