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