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