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