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