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