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