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