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