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