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