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