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