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)(17,18,23,28,22,27,21,26)(19,29,31,41,32,24,36,39)(20,33,34,42,35,25,37,40)(30,38,46,48,45,43,44,47)(1,3)(2,7)(4,11)(5,13)(6,12)(8,15)(9,10)(14,16)(17,19,22,32)(18,24,27,29)(20,30,35,45)(21,36,23,31)(25,38,33,43)(26,41,28,39)(34,46,37,44)(40,48,42,47)(1,4,6,5)(2,8,9,14)(3,11,12,13)(7,15,10,16)(17,20,23,37,22,35,21,34)(18,25,26,40,27,33,28,42)(19,30,31,44,32,45,36,46)(24,38,41,48,29,43,39,47)(3,12)(7,10)(11,13)(15,16)(17,21,22,23)(18,26,27,28)(19,31,32,36)(20,34,35,37)(24,39,29,41)(25,40,33,42)(30,44,45,46)(38,47,43,48)(1,5,6,4)(2,8,9,14)(3,13,12,11)(7,15,10,16)(18,27)(19,32)(25,33)(26,28)(30,45)(31,36)(40,42)(44,46)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.