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