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