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