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