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