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