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