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