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