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