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