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