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