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