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)(20,34,37,46)(21,40,32,42)(22,29,23,28)(26,39,45,38)(31,47,48,43)(35,44,36,41)(2,5)(6,8)(9,11)(10,13)(12,16)(14,15)(17,19,24,33)(18,25,30,27)(20,35,37,36)(21,22,32,23)(26,43,45,47)(28,40,29,42)(31,38,48,39)(34,44,46,41)(1,3,4,7)(2,6,5,8)(17,20,22,38,24,37,23,39)(18,26,28,34,30,45,29,46)(19,31,21,36,33,48,32,35)(25,41,42,47,27,44,40,43)(11,16)(13,15)(17,21,23,19,24,32,22,33)(18,27,29,42,30,25,28,40)(20,36,39,31,37,35,38,48)(26,44,46,47,45,41,34,43)(2,5)(6,8)(10,14)(13,15)(20,37)(26,45)(31,48)(34,46)(35,36)(38,39)(41,44)(43,47) 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.