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