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