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