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