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