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