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