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