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