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)(21,27,31,47,40,48,39,42)(1,2,5,8)(3,9,10,6)(4,13,12,7)(11,14,16,15)(17,19,24,35)(18,25,29,44)(20,31,32,39)(21,38,40,37)(22,33,23,34)(26,42,46,47)(27,45,48,36)(28,43,41,30)(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)(21,34,40,33)(22,37,23,38)(25,42,44,47)(27,43,48,30)(28,45,41,36)(3,10)(6,9)(11,16)(14,15)(17,21,23,39,24,40,22,31)(18,27,41,42,29,48,28,47)(19,32,33,37,35,20,34,38)(25,26,43,36,44,46,30,45)(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)(21,39,40,31)(25,43,44,30)(26,45,46,36)(27,42,48,47)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.