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