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