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