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