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