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