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