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