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