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