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