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