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