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