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