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