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