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