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