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