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