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