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