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