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)(18,23)(19,25)(21,29)(28,32)(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)(19,20)(21,24)(22,23)(25,27)(26,28)(29,30)(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)(19,25)(20,27)(26,31)(28,32)(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)(17,19)(18,20)(21,26)(22,25)(23,27)(24,28)(29,31)(30,32)(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)(17,20)(18,19)(21,28)(22,27)(23,25)(24,26)(29,32)(30,31)(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)(17,21,22,29)(18,24,23,30)(19,26,25,31)(20,28,27,32)(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.