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