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