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