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