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