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