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