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