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