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