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