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