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)(17,18,22,21)(19,24,27,23)(20,28,29,25)(26,30,32,31)(33,34,39,38)(35,42,36,40)(37,41,45,46)(43,48,44,47)(1,3)(2,7)(4,9)(5,12)(6,11)(8,16)(10,14)(13,15)(17,19,22,27)(18,23,21,24)(20,26,29,32)(25,30,28,31)(33,35,39,36)(34,40,38,42)(37,43,45,44)(41,47,46,48)(3,11)(4,13)(7,14)(8,12)(17,19,22,27)(18,23,21,24)(20,26,29,32)(25,30,28,31)(33,34,39,38)(35,40,36,42)(37,41,45,46)(43,47,44,48)(1,4,6,13)(2,8,10,12)(3,9,11,15)(5,7,16,14)(17,19)(18,24)(20,26)(21,23)(22,27)(25,31)(28,30)(29,32)(33,36,39,35)(34,40,38,42)(37,44,45,43)(41,47,46,48)(1,2)(3,7)(4,8)(5,15)(6,10)(9,16)(11,14)(12,13)(17,20,22,29)(18,25,21,28)(19,26,27,32)(23,30,24,31)(33,37)(34,41)(35,43)(36,44)(38,46)(39,45)(40,47)(42,48)(1,5,6,16)(2,9,10,15)(3,12,11,8)(4,14,13,7)(17,21,22,18)(19,24,27,23)(20,25,29,28)(26,30,32,31)(33,38,39,34)(35,42,36,40)(37,41,45,46)(43,47,44,48)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.