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