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