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