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