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