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