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