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