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