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