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