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