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