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