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)(17,18,23,25)(19,20,28,24)(21,26,32,30)(22,29,31,27)(33,34,38,41)(35,39,44,47)(36,37,45,40)(42,43,48,46)(1,3,7,4)(2,8,9,6)(5,12,14,11)(10,13,16,15)(17,19,23,28)(18,24,25,20)(21,31,32,22)(26,29,30,27)(33,35,38,44)(34,39,41,47)(36,42,45,48)(37,43,40,46)(2,9)(3,4)(10,16)(11,12)(18,25)(20,24)(26,30)(27,29)(33,36,38,45)(34,40,41,37)(35,42,44,48)(39,46,47,43)(1,4,7,3)(2,6,9,8)(5,12,14,11)(10,13,16,15)(17,20)(18,19)(21,27)(22,30)(23,24)(25,28)(26,31)(29,32)(33,36)(34,37)(35,42)(38,45)(39,43)(40,41)(44,48)(46,47)(1,5)(2,10)(3,11)(4,12)(6,13)(7,14)(8,15)(9,16)(17,21,23,32)(18,26,25,30)(19,22,28,31)(20,29,24,27)(33,35)(34,39)(36,42)(37,43)(38,44)(40,46)(41,47)(45,48)(1,6)(2,3)(4,9)(5,13)(7,8)(10,11)(12,16)(14,15)(17,22)(18,27)(19,21)(20,30)(23,31)(24,26)(25,29)(28,32)(33,37)(34,36)(35,43)(38,40)(39,42)(41,45)(44,46)(47,48) 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.