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