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