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