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