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