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