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