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