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