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