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