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