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