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)(19,24)(20,22)(21,28)(23,27)(25,30)(26,31)(29,32)(33,34)(35,38)(36,44)(37,40)(39,46)(41,43)(42,48)(45,47)(1,3,7,4)(2,8,6,9)(5,11,13,12)(10,15,14,16)(17,19,22,27)(18,23,20,24)(21,26,30,29)(25,31,28,32)(33,34)(35,41)(36,39)(37,40)(38,43)(42,48)(44,46)(45,47)(18,20)(23,24)(25,28)(31,32)(33,34,37,40)(35,38,43,41)(36,39,46,44)(42,47,45,48)(1,4,7,3)(2,9,6,8)(5,11,13,12)(10,15,14,16)(17,20,22,18)(19,24,27,23)(21,28,30,25)(26,32,29,31)(33,34)(35,41)(36,39)(37,40)(38,43)(42,48)(44,46)(45,47)(1,5,7,13)(2,10,6,14)(3,11,4,12)(8,15,9,16)(17,19)(18,24)(20,23)(21,29)(22,27)(25,31)(26,30)(28,32)(33,35,37,43)(34,38,40,41)(36,45,46,42)(39,48,44,47)(1,6,7,2)(3,9,4,8)(5,10,13,14)(11,15,12,16)(17,21)(18,25)(19,26)(20,28)(22,30)(23,31)(24,32)(27,29)(33,36)(34,39)(35,42)(37,46)(38,47)(40,44)(41,48)(43,45)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.