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