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