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