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