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