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)(17,18,21,23)(19,25,26,22)(20,28,29,24)(27,30,32,31)(33,34,37,40)(35,38,42,46)(36,39,44,48)(41,45,43,47)(1,3)(2,8)(4,11)(5,14)(6,12)(7,13)(9,16)(10,15)(17,18)(19,22)(20,28)(21,23)(24,29)(25,26)(27,31)(30,32)(33,35,37,42)(34,38,40,46)(36,43,44,41)(39,47,48,45)(1,4,7,2)(3,11,13,8)(5,10,6,9)(12,16,14,15)(17,19,21,26)(18,22,23,25)(20,27,29,32)(24,30,28,31)(33,36)(34,39)(35,41)(37,44)(38,45)(40,48)(42,43)(46,47)(2,4)(8,11)(9,10)(15,16)(18,23)(19,26)(24,28)(27,32)(36,44)(39,48)(41,43)(45,47) involution — undirected(1,5,7,6)(2,9,4,10)(3,12,13,14)(8,15,11,16)(17,20,21,29)(18,24,23,28)(19,27,26,32)(22,30,25,31)(35,42)(38,46)(41,43)(45,47)(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.