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