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