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