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