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