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