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