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