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