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