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