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