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