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