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