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