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