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