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