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