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