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