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