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