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