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