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