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