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