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