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)(17,18,22,27)(19,29,30,24)(20,33,35,48)(21,39,40,26)(23,43,42,45)(25,44,32,37)(28,34,46,41)(31,38,47,36)(1,3)(2,7)(4,11)(5,13)(6,12)(8,15)(9,10)(14,16)(17,19,22,30)(18,24,27,29)(20,28,35,46)(21,32,40,25)(23,31,42,47)(26,37,39,44)(33,41,48,34)(36,45,38,43)(1,4,6,5)(2,8,9,14)(3,11,12,13)(7,15,10,16)(17,20,34,24,21,38,23,37,22,35,41,29,40,36,42,44)(18,25,45,47,26,19,28,33,27,32,43,31,39,30,46,48)(3,12)(7,10)(11,13)(15,16)(19,30)(20,35)(24,29)(25,32)(31,47)(33,48)(36,38)(37,44) involution — undirected(1,5,6,4)(2,8,9,14)(3,13,12,11)(7,15,10,16)(17,21,22,40)(18,26,27,39)(19,25,30,32)(20,36,35,38)(23,41,42,34)(24,44,29,37)(28,43,46,45)(31,33,47,48)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.