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