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