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