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)(18,23,25,36)(20,30)(21,33)(24,35,38,46)(26,31,34,37)(28,42)(29,41)(32,45)(39,43,44,47)(40,48)(1,3)(2,6)(4,10)(5,9)(7,12)(8,13)(11,15)(14,16)(17,18,22,25)(19,24,27,38)(20,31,32,37)(21,34,33,26)(23,30,36,45)(28,43,40,47)(29,44,41,39)(35,42,46,48)(3,9)(6,12)(10,15)(13,16)(17,19)(18,24)(20,28)(21,29)(22,27)(23,35)(25,38)(26,39)(30,42)(31,43)(32,40)(33,41)(34,44)(36,46)(37,47)(45,48) involution — undirected(2,7)(6,12)(8,14)(13,16)(19,27)(24,38)(28,40)(29,41)(35,46)(39,44)(42,48)(43,47) 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.