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