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