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