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