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