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