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