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