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