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