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