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