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