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