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