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