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