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