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