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