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