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