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