One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(6,8)(11,15)(13,16)(17,18,21,22)(19,25,27,23)(20,28,30,24)(26,31,29,32)(33,34,38,37)(35,41,43,39)(36,44,45,40)(42,46,48,47)(9,10,12,14)(11,13,15,16)(18,22)(23,25)(24,28)(31,32)(36,45)(40,44)(42,48)(46,47)(9,10)(11,13)(12,14)(15,16)(17,19,21,27)(18,23,22,25)(20,29,30,26)(24,32,28,31)(33,35,38,43)(34,39,37,41)(36,42,45,48)(40,46,44,47)(1,2)(3,6)(4,5)(7,8)(17,18)(19,23)(20,24)(21,22)(25,27)(26,31)(28,30)(29,32)(33,36,38,45)(34,40,37,44)(35,42,43,48)(39,46,41,47)(1,3,4,7)(2,6,5,8)(9,11)(10,13)(12,15)(14,16)(17,20,21,30)(18,24,22,28)(19,26,27,29)(23,31,25,32)(33,37,38,34)(35,41,43,39)(36,44,45,40)(42,47,48,46)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.