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