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