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