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