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