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