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