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