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