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