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