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