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