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