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