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