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)(17,18,23,25)(19,26,22,24)(20,21,30,31)(27,28,29,32)(34,39)(35,36)(37,45)(47,48)(1,2,5,6)(3,7,11,9)(4,8,14,12)(10,15,13,16)(17,19,23,22)(18,24,25,26)(20,29,30,27)(21,28,31,32)(33,34,38,39)(35,41,36,40)(37,42,45,46)(43,48,44,47)(2,6)(7,9)(8,12)(15,16)(18,25)(20,30)(24,26)(27,29)(33,35,38,36)(34,40,39,41)(37,43,45,44)(42,47,46,48)(1,2)(3,7)(4,12)(5,6)(8,14)(9,11)(10,16)(13,15)(17,20)(18,21)(19,27)(22,29)(23,30)(24,32)(25,31)(26,28)(33,36,38,35)(34,41,39,40)(37,44,45,43)(42,48,46,47)(1,3,5,11)(2,7,6,9)(4,13,14,10)(8,16,12,15)(17,21)(18,20)(19,28)(22,32)(23,31)(24,29)(25,30)(26,27)(33,37)(34,42)(35,43)(36,44)(38,45)(39,46)(40,47)(41,48)(1,4,5,14)(2,8,6,12)(3,10,11,13)(7,15,9,16)(17,22,23,19)(18,24,25,26)(20,27,30,29)(21,28,31,32)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.