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