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