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