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