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