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