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