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