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