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