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)(19,29,33,44)(20,25)(21,26)(22,36,38,27)(23,28)(24,32)(30,45,31,46)(34,43,35,42)(37,41)(39,47)(40,48)(1,3)(2,7)(4,11)(5,12)(6,10)(8,15)(9,14)(13,16)(17,19,23,33)(18,24,28,41)(20,31,21,30)(22,37,38,32)(25,40,26,39)(27,44,36,29)(34,47,35,48)(42,45,43,46)(3,10)(7,14)(11,12)(15,16)(17,20,23,21)(18,25,28,26)(19,30,33,31)(22,34,38,35)(24,39,41,40)(27,42,36,43)(29,45,44,46)(32,47,37,48)(1,4,6,5)(2,8,9,13)(3,11,10,12)(7,15,14,16)(17,21,23,20)(18,26,28,25)(19,31,33,30)(22,35,38,34)(24,40,41,39)(27,43,36,42)(29,46,44,45)(32,48,37,47)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.