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