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