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