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