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