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