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