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