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