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