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