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