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