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