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