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