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