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