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