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