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