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