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)(19,23)(20,28)(21,22)(24,30)(25,27)(26,32)(29,31)(33,34)(35,45)(36,39)(37,46)(38,42)(40,44)(41,48)(43,47)(4,11)(7,9)(12,16)(14,15)(17,18)(19,25)(20,24)(21,22)(23,27)(26,32)(28,30)(29,31)(33,35)(34,41)(36,46)(37,42)(38,43)(39,47)(40,48)(44,45) involution — undirected(2,3)(7,9)(8,10)(14,15)(18,22)(23,25)(24,28)(31,32)(33,36,40,38)(34,42,44,39)(35,46,48,43)(37,45,47,41)(1,3,6,2)(4,9,11,7)(5,10,13,8)(12,15,16,14)(17,18)(19,25)(20,24)(21,22)(23,27)(26,32)(28,30)(29,31)(33,37,40,47)(34,43,44,46)(35,42,48,39)(36,41,38,45)(1,4)(2,7)(3,9)(5,12)(6,11)(8,14)(10,15)(13,16)(17,19)(18,23)(20,29)(21,27)(22,25)(24,32)(26,30)(28,31)(33,38,40,36)(34,42,44,39)(35,46,48,43)(37,41,47,45)(1,5)(2,8)(3,10)(4,12)(6,13)(7,14)(9,15)(11,16)(17,20)(18,24)(19,26)(21,30)(22,28)(23,31)(25,32)(27,29)(33,39,40,42)(34,38,44,36)(35,47,48,37)(41,43,45,46)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.