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