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