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