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