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