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