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