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