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