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