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