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